{
  "annotation_id": "17f32458-af49-4ac5-b672-d7443d38b875",
  "date_created": "2026-03-02T18:02:45.075000Z",
  "date_modified": "2026-03-02T18:02:45.075000Z",
  "file_hash": "9ef5d6f89bb0730b31d9cf9a7c60a816a8a2b68882636046621560cacc5c445e",
  "private": false,
  "record": {
    "abstract": "A complete, non-demolition procedure is established for measuring multi-qubit\nentangled states, such as the Bell-states and the GHZ-states, which is\nessential in certain processes of quantum communication, computation, and\nteleportation. No interaction between the individual parts of the entangled\nsystem, nor with any environment is required. A small probe (e.g. a single\nqubit) takes care of all interaction with the system, and is used repeatedly.\nThe probe-qubit interaction is of the simplest form, and only this one type of\ninteraction is required to perform a complete measurement. The process may be\ndivided into elementary local operations and interactions, taking place\nsequentially as the probe visits each of the qubits. A shuttle mode is\ndescribed, which may be repeated indefinitely. By the quantum Zeno effect, the\nentangled states can be maintained until released in a predictable state. This\nshuttle process is stable, and self-correcting, by virtue of the standard\nmeasurements performed repeatedly on the probe.",
    "arxiv_id": "quant-ph/9812085",
    "authors": [
      "Ulf Larsen"
    ],
    "categories": [
      "quant-ph"
    ],
    "title": "Measuring the entangled Bell and GHZ aspects using a single-qubit   shuttle",
    "url": "https://arxiv.org/abs/quant-ph/9812085"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "7a9138cf-6831-421e-8a03-177e4d65d63a",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}